Question

Given the function f(x) = - 4x + 2. Find the range using the domain.

D:{-1, 2}
R:{ , }

Answer 1

R { - 6, 6 }

Explanation:

To find the range substitute the values of x from the domain into f(x)

f(- 1) = - 4(- 1) + 2 = 4 + 2 = 6

f(2) = - 4(2) + 2 = - 8 + 2 = - 6

Range { - 6, 6 }